/**
 * Domain error types for the CMS module. Mirrors `cms/error.rs`.
 */
import type { DomainError } from "../core/error.ts";

/** Shared repository error type for CMS persistence. */
export type RepositoryError = DomainError;

/** Errors from service / use-case operations in the CMS domain. */
export type ServiceError =
  | { kind: "repository"; error: DomainError }
  | { kind: "invalid_input"; message: string }
  | { kind: "other"; message: string };

export function cmsRepositoryErr(err: DomainError): ServiceError {
  return { kind: "repository", error: err };
}
export function invalidInput(message: string): ServiceError {
  return { kind: "invalid_input", message };
}
export function cmsOther(message: string): ServiceError {
  return { kind: "other", message };
}

export function cmsServiceErrorToString(e: ServiceError): string {
  switch (e.kind) {
    case "repository":
      return `repository error: ${e.error.message}`;
    case "invalid_input":
      return `invalid input: ${e.message}`;
    case "other":
      return e.message;
  }
}